Downdbaft heater



` ocr. 16, 1192s. 1.681,"638

H. J. RUPP DOWNDRAFT HEATER A AFiled Nov. 2. 1927 a sheets-sheet 1 00000000000 0000000l A A 0 0 0)00000 1 Patented Oct. 16, `1928 ,UNITED STATES PATENT OFFICE;

HENRY J.. nur?, OF QUINOL ILLINOIS, ASSIGNORITO GEM errY strovr. MANUFACTUR- me` oo., A CORPORATION or ILLINOIS.`

noWNn-RAFT HEATER.

' Application' led November 2, 1927. S'eral No. 230,560.

This invention relates to a heat circulating device and more particularly to a downtdra-ft heater wherein the entire base is heated so that the incoming air, movingbetween the base of a heater unit andan outer enclosing casing, is rapidly heated and; is then delected" by suitable bailes to cause discharge. of ythe heated air through side and liront louveis of the' casing to direct a. large volume of heated air to. the floor surrounding the heater7 thereby providing an unusually large volume of warm circulating air;

It is an object of thisinvention-` to provide an improved heat circulating unit, consisting of a down-draft stove, mounted within a casing or cabinet, and connected therewith by means of'suitable hot air defieoting baiiies.`

It is also an object of this invention to provide an improved downfdraift heaterwhereini an apertured battle is positioned between an outer casing and a down-draft stove, enclosed within said casing, to afford: an. arrangement whereby a. greater circulation of hot airis produced by ycausing part of the hotjair to be deiiected downwardly to warm the floor surrounding the heater while additional air is permitted to rise upwardly in the Space provided between the upper portionl ofthe stove and the casing andbe discharged through the grilled top of said casing.

It is furthermore an object of thisinven tion to provide an improved down-draft heater comprising a down-draft stove which i is mounted within a heat circulatingcasing and which is connected therewith by suitable baiiies whereby partot` the hea-ted "air is directed downwardly around the iioor areaV Surrounding the heaterwhile additional air is heated and permitted topass upwardlyy beftween the .stove and casing and out of theI casino` to to vorovide an unusuall` larve volume Ol" warmcirculating air. y

It is an important obgect of this invention toy provide a simplified arrangement of a down-dr`att circulator whereby unusually largevolunies of warmoirculating air may be produced by enclosing a down-draft stove within a casing7 having suitablebaiiies positioned: therein,y whereby portions of lthe hot .i

air are defleoteddownwardly out of the sides andmlront ot the casing against the Hoor, while `additional volumes of *hotk air are per mittedto passy upwardly through the casing andi outr ofV the top tliereo, u

Other and further important objects of this invention' will be` apparent from the disclosures in the speciication and the accom panying drawings. i

This inventioniin a preferred form) is.

illustrated -in the vdrawings morezi-ully described. s I

Ou the drawings:

and' hereinafter Figure l is a top plan `view or' an improved A down-draft heater, embodying the principles of this invention, with parts of the heater broken away.

Figure 2 yis a. transverse.horizontal section.

of. theheatertaken on line IIf-H'OfFigure 3i Figure 3 is a vertical` section ot' the heater taken;i on line III-III of ,Figure 2.

Figurei isla vertical section taken on Aline As shown on thedrawings:

rLhe iniproved'dowirdratt heater comprises a stove consisting of a base 1, upon which is supported alirepot 2, having a grate or grid on the flangeftv`l Supported on the irepotg2; y i

is ak steeldrum, cast iron combustion chamber or housing 5,

roundedfby a fuel supplyorintake hopper 6,

the Aouterendoi'whioh is'provi ded with 'asilitablev closure door 7 having standard adjust-` able vanes `of any desired type. v The upper end of the r cylindrical drum 5 is closed by nieansot a top, sectionhaving an opening j 1nv the uppercentral portion thereof adapted having a front opening, `surtothe, closed bymeaiis ot'a liingedl-y supported closurefplate or cover 9. f Forming a part of the rear/Ot the iirepot 2vis an upwardly directed Hue 10, the upper endof which is slightly restricted and grooved to form a Suit-ablesupport l1 for aline `pipe 4(not Ychamber 14 is an upper casing chamber 15,

having iitted on the upper end thereof a grilled top section 16 provided with a flue pipe opening 17 positioned `directly abovethe flue pipe support 1,1, as illustrated in Figure 4. The grilled casing top v16 is also provided with a central opening which is closed .by a hingedly supported grilled or apertured cover plate 18. Formedin the lower portion of each side of the upper casing chamber 15 is an air intake opening, having mounted therein Van open air intake grid or apertured plate 19. The front of the upper casing chamber 15 is provided with a suitable opening into which ythe fuel intake hopper projects. The intake opening of the upper casing chamber is closed by means of the feed door 7, which also forms a part ofthe downdraft stove.

The casing surrounding the down-draft stove is separated therefrom by a suitable disi. tance to afford a heat circulating .space or chamber within the casing. The lower casing chamber 14 is constructed with each. of the side walls and the front wall having a hot air outlet opening formed therein and partially closedl by means of a hotL air outlet grid or apertured plate 20. Provided in each of the side walls and front wall above the respective i grid 2O is a hot air outlet opening 21, each of which is partially covered by imeans of a downwardly directed hood `or lo'uver 22. The base 1 of the stove is provided with a closure door 23 which also serves Vas a closure means for an opening provided in the lower portion of the front wall of the outer casing. f The door 23 is provided with a standard adjustable grid of any desired type.

For the purpose of providing a greater circulation of the hot .air produced by the enclosed stove, the interior of the lower por-y tionr of the casing is equipped with a horizontally disposed baille plate 24 having a plus ralityfof apertures 25 therein in the two side wings of the baiiie plate. The baffle plate 2,41 extends across the front ofthe casing' 'andI rearwardly along each side thereof. kThe rear ends of the side-wings ofthe baffle platey 24 terminate in a substantially diagonal edge 26, asclearly shown in Figure 2, with each of said edges having integrally formed or rigidly secured thereto -a downwardly directed Mounted on the rear portion of an f ange or apron 27 each of which extends downwardly to a point below the top of the stove base 1.- The baffle plate 24, together with aprons 27 thereof, afford an arrangement whereby the interior of the heater casing is divided into a lower heat'circulating cham- The improved down-draft heater is constructed sothat when a lire is vstarted in the irepot 2 the base door 23 or the grid slots thereof may be opened. any desired amount ,toAY produce a temporary updraft until the lire yis properly started. TWhen the tire has vbeen started the base door23 is closed and a down-draft through the firepot 2 is started by opening the draft vanes of the feedvdoor 7.

rrhedown-draft arrangement in the encased stovecauses the yentire stove base 1 to become heated, thereby .producing a large 'heating aperturedbaiiles 24 within thecasing affords an arrangement whereby the incoming air entering the openbottom of the casing base ychamber 14 beginsto heat immediately as it passes upwardly between the stove base 1 and the lower chamber 14 of theouter casing. By the time the entering fairreaches the battle plates between thecasing and the top ofthe tirepot said. air is thoroughly heated. heatedairstriking against the baffle plates 24 is deflected downwardly in the sides and front lber-28 and an upper heat circulating chamber ,area closeto the Hoor. rrlhe provision of the The of the lower circulating chamber 28 of the casf ing and is directedor deflected through the louveropenings 21 and the openings of the heat outlet grids or plates 2O inthe sides and IHM front' ofthe casing, so that large volumes of warm airare directed against the floor for a considerable ydistance around the improved heater. Quantities of the heated air from the'lowerv casingchamber 28 pass upwardly through thebaffle openings 25 into the upper casing chamber 29, causinganupward circulation'tof air-within the chamber29 to# gether with the warm air which is produced in the rchamber 29 by the heated drum 5 of the stove.A The upward draft of warm air in lili-r the chambery29 causes a suctionor intake of cold air.through'the'uplper casing chamber grids 19 Vatthesides .offthe casing. t will vthus be noted that thel cold air taken' in through the grids 19 passesupwardly around y the stove drum 5 and is heated in its upward passage throughthe chamber 29. VAll of the "warm air within the casing above the baffle plates at they sides and front ofthe drum, together with the warm air passing upwardly from the lower casing chamber'28 between the apronsV 27,1is permitted to be discharged up- `wardly through the grilled'top 16 and-the grilled cover plate 18 thereof, therebyproviding' an unusuallylarge volume of warm cirycul'ating ainfortl .room within which the improved dowirdraft heater is 'positionedp By the use ofthe improved heater large quantities of warm. air are therefore circulated upwardly throughy the grilledtop of the casing, as wellA as downwardly out ofthe sides of thelower section of the Casing to heat? the floor for a considerable distance around the heater. The cold'zone usually found around the floor ot' a stove or circulating heater is, therefore, entirely,7 eliminated and an improved system oi' heat deflection and heat circulation is produced, with the water provided in the water pan 12 permitting the warm circulating air to be properly humiditied.

l amaware that many changes may be made, and numerous details ot construction may be varied through a wide range without departing from the principles of this invention, and I thereforedonot purpose limiting the patent granted liercon, otherwise than necessitated'by the prior art.

I claim as my invention.:

l. A heat circulating` device comprising a casing having air-escape openings therein, a stove mounted in said casing, baille means between said casing and stove, dividing the interior oiq said casing into upper and lower chambers, and aprons formed on said baille means. f y

2. The combination with a casing, of a down-shaft stove supported therein, louvers formed on said casing, grids mounted insaid casing below said louvers and` baille means mounted within said casing adapted to defleet warm air outwardly through said louvers and through said grids.

3. The combination with a casing open at the bottom, ot a grilled cover for said casing, a plurality of grids formed inthe walls of said casing, louvers formed on said casing, and baille means within said casing and around .said stove to produce a deflection of warm air outwardly through said grids and louvers.

4. A heat circulating device comprising a casing open at the bottom and having a plu` rality of openings in the walls thereof, aper" tured plates closing a plurality of said openings, louvers formed on said casing over the remaining openings, a grilled top for said casing, a grilled cover plate hinged on said top to close an opening therein, cross barsy mounted in the bottom of said casing,a downdratt stove mounted within said casing upon said cross bars, an aperturedbaflle in said casing` above said louve-rs and surrounding said stove, and downwardly directed aprons formed on the ends of said bai-lle and projecting from said stove intothe rear cornersoit said casing.

5. A heat circulating device comprising a casing open at its lower and upper ends, legs supporting said casing abovethefloor, support-s vformed in the lower end ol' said casing, a down-draft stove mounted within said casing upon said supports, a grilled cover for said casing, a flanged batllcmember vbetween said casing and "stove "dividinglthe interior of saidlcasinginto upper and lower' chamn bers, air inta te plates mounted in th'ewalls of thefupper portion ot said casingfabove said-baille means, louvers formed on-the lower portionoi said casing below said baille means,

and a plurality ot apertured air outletplates portion of the casing said casing and extending substantially,

around the sides and front of said stove, aprons lormed on said baille at the rear of said stove, air intake grids mounted in the casing above said apertured baille, louvers` formed on said casing below said apertured baille and air outlet grids in said casing below said louvers. n

7. The combination with a casing having an open bottom and a grilled top, of a stove mounted therein, horizontal 'baliles mounted within said casing and litted around said stove, and vertical aprons formed on said ballles at the back of said casing.

8. The combination wi h a stove, oi a casing surrounding and supporting said stove above the floor, a baille mounted ,in said casingand surrounding the two sides and front of said stove above the level oi the stove tirepot, andbaille members eX` tending diagonally from the rear portion of said stove into the rear corners of said casing.

V9. The combination with a. casing having a grilled top, of a down-draft stove supported within said casingY above the floor,` a hori? Zontal baille mounted within said casing and surrounding both sidesy and front of said stove, saidhorizontal baille having apertures in the side portionsthereof, vertical baffles formeel on the rear ends of said horizontal baille and directed diagonally 'from the rear portion ol the stove intorear corners of said casing, apertured air intake plates mounted in said casing above said horizontal baille, air outlet plates mounted inl said casing below said horizontal-baille, and a plurality of louvers formed on said casing beneath saidhori- Zonta-l baille and above said air outlet plates.

1G. The combination with' a casing having door openings in the `front thereof, of a down-draft stove mounted in said casing above the lloor and having extensions fitting around the door openingsin said casing, doors for said casing adapted to also serve ascloeures for stove door openings, apertured'bafile means mounted between said casing and said stove, ap-crtured air intake plates mounted in the sides ot vsaid casingabove said baflle means, apertured air outlet plates mounted in the sides and front of saidcasing below said baille means and louvers formed on the down-draft sides andfront of said easing beneath said baeineans and above said air outlet plates.

l1. The combination with at down-draft of an apertured housing surrounding y stov and apertured defi all' 1 supporting said stove above thel floor,

to cause a downward deflection of n the lower portion of said housln eeting means within said houswarm g, andv divergincr aprons formed on the ends of said means adapted to 'oa-use an upward e1rcu1avtion of ywarm irin the upper -and rear por- Illinois.

HENRY J. RUPP. 

